MACHINA DYNAMICA
NEW!! New Dark Matter Optical Treatment for all Digital Players

NEW!! NEW DARK MATTER COMES IN KIT CONTAINING SMALL SUPER-THIN SQUARES SUITABLE FOR ATTACHING TO TOP SURFACE OF THE CD TRAY. SUPER THIN DOUBLE-SIDED ADHESIVE SQUARES PROVIDED. PRICE $39

New Dark Matter White Paper

Copyright January 2019 Geoff Kait

New Dark Matter NDM, the newest product from Machina Dynamica, is the only audio product that absorbs both visible scattered laser light and invisible scattered light, thereby improving sound quality considerably. The CD laser nominal wavelength of 780 nm, which is about 80 nm longer than the longest red wavelength 700 nm, means most of its light is invisible, while some of its light, the lower part of the bandwidth below 700 nm, is visible red, presumably as a safety feature. The laser is not monochromatic but has an effective bandwidth of around 650-850 nm. The Green Pen and other similar products, including Machina Dynamica Codename Turquoise tray masking kit, influence the sound of CDs because they absorb the color red. But most of the CD laser light, around 75%, is invisible and not (rpt not) amenable to absorption by any color, including black.

The color black is ineffective for absorbing infrared light; for CDs black is effective only (rpt only) for the inner edge. When black is used for the CD outer edge or the CD label it hurts the sound. NDM absorbs the color RED and all other visible colors. the colors used in the CD label graphics also influence the wavelengths of the scattered light so it would not be surprising in the least if other visible colors besides red comprise the scattered light. NDM is effective for CD, DVD, SACD and Blu Ray players. NDM is applied to the top surface of the CD player tray, where it will be in proximity to where the laser reads the physical data.

The laser light scattering occurs when the laser strikes the nano-scale physical pits that represent part of the data encoded on the CD. Under normal circumstances scattered light that is a high percentage of full reflected power can be detected as real signal by the photodetector.

NDM is comprised of 10 super-thin plastic squares 1/2 inch per side that are attached to the top surface of the CD tray with super-thin double-sided tape provided. Total thickness less than 1/32 inch. The CD rests on top of the plastic squares when it is first placed on the tray but the spinning CD does not contact them during play.

NDM eliminates all visible and invisible scattered laser light and is effective for all digital systems, CD, SACD, DVD and Blu Ray. The benefit of such a large reduction in visible and invisible background scattered light is a marked increase in optical signal to (noise + distortion) ratio. All improvements to the optical effectiveness are multiplied by a factor of two downstream.

For whatever reason, errors produced by scattered light inside the transport getting into the photodetector are not corrected by the Reed-Solomon error detection/error correction codes.

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